<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>login</title>
</head>

<body>
<h3 style="background-color: crimson">登录</h3>
<span th:if="${error!=null}">[[${error}]]</span>
<form th:action="@{/doLogin}" method="post">
    用户名:<input type="text" name="userName"><br/>
    密码:<input type="password" name="password"><br/>
    <input type="submit" value="登录">
</form>
</body>

</html>